Patents by Inventor Herbert B. Cryar, Jr.

Herbert B. Cryar, Jr. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4016931
    Abstract: A permeable consolidated gravel pack is placed in a borehole adjacent an incompetent formation by first emplacing a self-breaking gel in the formation to temporarily plug the formation, and then injecting a slurry of treated particulate matter, e.g. resin coated sand, to form the consolidated gravel pack. The method is particularly useful for the treatment of incompetent formations having unusually low pressures and high permeabilities.
    Type: Grant
    Filed: April 22, 1976
    Date of Patent: April 12, 1977
    Assignee: The Dow Chemical Company
    Inventor: Herbert B. Cryar, Jr.